/*
 * Copyright 2011-2012 the original author or authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.osforce.spring4me.jdbc.utils;

import java.beans.PropertyDescriptor;
import java.util.ArrayList;
import java.util.List;

import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;

/**
 * 
 * @author Gavin
 * @since 0.4.0
 * @create 2012-3-11 - ����3:48:28
 */
public abstract class ModelUtils {

	public static String[] getFilterFields(Object model) {
		if(model==null) {
			return null;
		}
		//
		List<String> filterFields = new ArrayList<String>();
		BeanWrapper beanWrapper = new BeanWrapperImpl(model);
		PropertyDescriptor[] pds = beanWrapper.getPropertyDescriptors();
		for(PropertyDescriptor pd : pds) {
			String propName = pd.getName();
			Object propValue = beanWrapper.getPropertyValue(propName);
			if(propValue!=null && !(propValue instanceof Class<?>)) {
				filterFields.add(propName);
			}
		}
		//
		return filterFields.toArray(new String[filterFields.size()]);
	}
	
}
